Griffin died at the age of 91.
Congresswoman Debbie Dingell released a statement Friday about her "first boss".
"Senator Griffin was my first boss and he taught me so much. He taught me the importance of integrity in the political process, keeping your word, and working with members on both sides of the aisle. He always fought for Michigan because he loved Michigan, and after years in office he spent his time trying to instill in young people the value and the importance of public service. His passing makes me very sad and reflective, and my thoughts and prayers go out to his family and friends during this difficult time."
He was born in Detroit, raised in both Dearborn and Garden City, and then went on to serve in WWII before attending Central Michigan and later the University of Michigan. He practiced law in Traverse City for most of the 1950s before being elected to the U.S. House of Representatives from the Michigan's 9th congressional district in 1956.
Ten years later, he was appointed to the United States Senate and held that office until 1979, serving as Senate Minority Whip for eight years.